Beginning at the NW corner of the intersection of Pine & 675, thence north 950 feet, thence west 380 feet, thence south 950 feet, thence southeast 380 feet. Is this an acceptable metes and bounds description?

They are correct

Explanation:

The explanation, the description is clear. But normally, to mention directions in the street, if it used the name of the streets, of some specific corners, but normally, the directions are in blocks, for example two blocks to the right, or to the left, etc.